1. Department of Joint Orthopedics and Sports Medicine Hengshui People's Hospital Hengshui China
2. Sports Injury Department Tianjin Hospital Tianjin China
3. Department of Joint Surgery Shandong Provincial Hospital Affiliated to Shandong First Medical University Jinan China
4. Department of Joint Orthopedics Shuangyashan People's Hospital Shuangyashan China